The Paper reporter Yang Yang
According to the latest data released by China Southern Power Grid Corporation, at 15:23 on July 25, the unified load of China Southern Power Grid reached 223 million kilowatts, an increase of 6.459 million kilowatts or 2.99% over last year's peak load, which was the first record this year.
At 14:27 that day, the unified load of Guangdong Power Grid hit a record high for the first time this year, reaching 142 million kilowatts, an increase of 4.89% over last year's peak load.
On the same day, the electricity load in Guangzhou, Shenzhen, Dongguan, Foshan, Huizhou, Chaozhou, Guangxi Nanning and other cities all hit record highs.
Power load refers to the power consumed by all electrical equipment in the power system.
The highest power load of a city, that is, the total power of all electrical equipment in life, commerce, industry, agriculture, etc. at the same time.
The operating area of China Southern Power Grid covers Guangdong, Guangxi, Yunnan, Guizhou and Hainan provinces, and is connected to the power grids of Hong Kong, Macau and Southeast Asian countries. billion households.
In 2021, China Southern Power Grid will adjust the maximum load of 216 million kilowatts, an increase of 8.2%, and hit a new high six times during the year.
Recently, the high temperature weather in the south continued.
As of 17:00 on July 25, the meteorological departments of Guangdong, Guangxi, Yunnan, Guizhou, Hainan and other five southern provinces and regions issued 21 red warnings and 140 orange warnings for high temperature weather that day.
"In Guangdong, when the temperature reaches above 35°C, for every 1°C increase, the corresponding load will increase by 3 to 5 million kilowatts." Yang Lin, manager of the dispatching office of China Southern Power Grid Power Dispatching and Control Center, introduced that since July, China Southern Power Grid's highest The overall load adjustment has exceeded 200 million kilowatts for 13 days.
The Guangdong Meteorological Department issued a forecast. It is expected that the subtropical high over Guangdong will remain strong until the end of July, so this round of high temperature weather may last until early August.
In addition to Guangdong, Guangxi, Yunnan, and Hainan have also maintained high electricity load in recent days.
China Southern Power Grid Corporation has researched and judged the situation that the flood season is too early, and made full use of the large platform of China Southern Power Grid.
In the first half of the year, the hydropower generation in the southern region was 214.8 billion kWh, an increase of 46.7 billion kWh year-on-year, which effectively guaranteed the power supply of the five southern provinces.
China Southern Power Grid Corporation said that it is currently carrying out special inspections for equipment to prevent high temperature and overheating according to the characteristics of power grid operation in summer, so as to detect and eliminate hidden defects in time and avoid equipment overload.
At the same time, we will make the greatest efforts to consume clean energy, further tap the peak power generation capacity of thermal power, increase the mutual assistance between surplus and shortage across provinces and regions, and ensure the safe and stable operation of the power grid and the reliable supply of electricity.
The Paper noted that on July 11, the highest electricity load in the whole society in Zhejiang Province exceeded 100 million kilowatts, reaching 101.9 million kilowatts, a record high, an increase of 1.68 million kilowatts from the highest load last year.
Last year, the highest electricity load of Zhejiang Power Grid exceeded 100 million kilowatts for the first time, becoming the third provincial power grid in China with the highest load exceeding 100 million kilowatts after Guangdong and Jiangsu.
That trend has not changed this year.
Zhejiang Daily reported that according to the province's energy bureau's preliminary forecast, this year, the province's entire society's highest electricity load will reach 106 million to 107 million kilowatts, a year-on-year increase of 5.8% to 6.8%.
It is reported that during the peak summer season, Zhejiang Province will ensure that the coal storage in the power plants will be available for no less than 15 days, increase the calorific value of thermal coal to more than 5,200 kcal, and release more than 500,000 kilowatts of coal power output; increase natural gas resources to strive for Intensify efforts to lock in gas volume and gas prices to ensure that the peak output of gas and electricity during the peak summer season will increase by another 1 million kilowatts.
As of June, Zhejiang Province has newly added 370,000 kilowatts of grid-connected offshore wind power and 1.9 million kilowatts of photovoltaics, and completed the capacity expansion and transformation of units in the province to add 220,000 kilowatts of capacity, ensuring that the new installed capacity in peak summer reaches about 2 million kilowatts. Balance the summer power gap.
The purchase of electricity from outside the province is also an important channel for energy supply.
By connecting with provinces with surplus electricity, Zhejiang Province has made every effort to increase the electricity capacity of the Provincial Foreign Ministers' Association, and has achieved an annual planned electricity capacity of more than 180 billion kWh.
"We make full use of the increased hydropower supply in Sichuan, the inter-provincial market and the Yangtze River Delta power mutual insurance and mutual assistance mechanism, supplemented by the increase in spot market purchases and other means to ensure an additional power supply of 2 million kilowatts during peak periods." The relevant person in charge of the province's energy bureau said. .
While ensuring energy supply, Zhejiang will also continue to coordinate the dual control of energy consumption, "prioritizing key high-energy-consuming enterprises into the orderly electricity consumption plan, and forcing industries and enterprises to speed up the pace of transformation and upgrading based on the long-term."
According to the news from State Grid Jiangsu Company, at 16:10 on June 17, the highest power load dispatched by Jiangsu Power Grid reached 103.6 million kilowatts, the first time the highest load exceeded 100 million this summer, which was 19 days earlier than the first time the load exceeded 100 million in summer in 2021. In the history of peak summer, the power grid first entered the state of load exceeding 100 million, exceeding the power load level of the same period.
The Jiangsu Provincial Development and Reform Commission released a news on July 13. Affected by the continuous sunny, hot and high temperature weather and the improvement of the epidemic situation, enterprises have started to run at full capacity. Since July, the electricity load in Jiangsu Province has continued to rise sharply. At 13:00 on July 12, the whole country The province's maximum electricity load reached 126 million kilowatts, a record high.
Nine of the 13 prefecture-level cities have reached a record high, namely Nanjing, Changzhou, Suzhou, Yangzhou, Taizhou, Nantong, Huai'an, Yancheng and Suqian.
In the face of the severe "baking" test of power supply guarantee during the peak season, the Jiangsu Provincial Development and Reform Commission said that it will give full play to the role of the energy supply and supply coordination group mechanism, strengthen overall coordination, careful organization, scientific dispatch, and do everything possible to ensure the safe and stable operation of the power grid. Urban and rural residents use electricity normally for living and production.
The first is to accurately perform load forecasting and power balance analysis, and to optimize and adjust the operation mode of the power grid in a timely manner; the second is to strengthen the operation management of units, stabilize the supply of thermal coal and gas, and ensure that coal-fired and gas-fired units should be fully turned on and stable. It is to strive for power resources from outside the region to enter the Soviet Union; the fourth is to accurately and steadily implement demand response to ensure the balance of power supply and demand.